Wheel.



G. KEHR.

WHEEL.

APPLICATION FILED JULY 29, 1910.

Patented Nov. 21, 1911.

2 SHEETS-SHEET I.

[N VEN TOR O. KBHR.

WHEEL v AP PLIOATION FILED JULY 29, 1910.

1,009,151. Patented NOV.21, 1911.

2 SHEETSS1IEET 2.

I l l 12 j 1 I I [NI/'ENTOR axles.

omits KEHR, or xnoxvrIlLE;

OF KNOXVILLE, .TENNESSEE, A; CQRPORATION OF TENNESSEE.

I I r WHEEI Ji Q To all whhin it concern; l I Be it known'thabL CYRUs KEHR, a citizen of'the United States, residing at Knox- .jv'ille, in the county of, Knox and State of Tennessee, have invented a new and-useful Improvement, in \Vheels, of which the fol lowing is a specification, reference being had to the accompanying drawing. My improvement relates generally to wheels, pulleys, etc'., arranged to rotate upon one end of a shaft or axle. The improve- ;Lnient is specially applicable to mine cars .and similar cars in which the axles are se- ,jcured to thecar body while :the wheels are isgsecured rotatably around the ends of the The object of'the invent-ion is (1) to provideaneflicient means for holding the wheel .1 on the-axle without drilling or grooving the latter, and at the, same timepro v iding for the-ready removal of the wheel from the .axle without removing the entire 1 pedestal orbearing box, -(2) to provide for such' re- "moval of the wheel while the-wheel is a Zi'ysingle casting without loose caps. or other i I 1 parts, and (3) to provide a construction requiring a minimum of machine work and which is at the same time practically dust and ol. tight, to the end that oil or similar lubricant may be constantly keptwithin the .hub and dust, cinders, etc., excluded therefrom.

In the accompanying drawings, Figure 1 is a horizontal upright section of a car struc- "35, ture embodying my improvement; Fig. 2 is a section on the line 2-2 of Fig. 1, looking toward the right; Fig. 3 is a section on the line 33 of Fig. 1, looking toward the left; Fig. 4; is a detail section of a portion of the hub and lower half of the bearing box; Fig. 5 is a section on the line 5-5 of Fig. 1;

.. Fig. 6 is a sectional side elevation, the view ."being perpendicular to the axle; Fig. 7; is a sectional detail view showing a modification of the lower section of the bearing. box; Fig.8 is a detail section showing a modification of both sections of the bearing box.

- For convenience in description, the side or portion of the wheel directed away from the car will be herein designated the front side or portion, while the opposite .side or I portion will be termed the rear side or portion.

In the particular form of the structure- 'rior cylindrical chamber extending from the rear end to the front end of the hub, the

removal.

tended a suitable distance to enter a bearing extend through flanges, 22, on the upper I p' fi amn ame Patented-Nov. 21,1911.

Applicationfllil July 29, 1910. -Seria1Io.'574,556.

ca'r aiile which is secured to the car body.

The bearing surface of this axle is of plane. cylindrical form and the entire axle is preferably of such form, for then no machine work is required thereon other than cutting the end smoothly in a plane to which its axis isperpendicular. "lhewheel, 2, has a rim, 3, spokes, 4, and a hub, 5. The body of the hub is cylindrical and it has an interear end being open to the same diameter as the interior chamber. Across the front end of said hub extends an endwall, 6, which is an aperture, .7, into which is fitted a screw plug, 8., Said aperture is designed for the introduction of lubricant. j, Onthe inner face of said wall are three shoulders or abut-. ments, 9, equi-distant from each other and bearing against the end of the shaft, 1. A sleeve, 10, surrounds the shaft, 1, from the end of the latter to the plane of the end of the hub, said sleeve preferably fitting said axle loosely enough to turn and permit easy Aroun said sleeve isa series of anti-friction rollers, 11, as long as the sleeve. Surrounding said rollers isanother' sleeve, 12, which is of the same length as said rollers and the sleeve,'10. Said sleeves and said rollers bear by theirfront ends against said abutments, 9. At its rear, said hub is exbox, 13, having anannular packing groove, 14, in which is packing, 15, for preventing the-passage of oil, dust, or water. The box, 13, is formed of cast metal and secured to the car body, 16. And said box consists of an upper section, 13*, and a lower section, 13". Upright bolts, 20, extend through the car body and both of said sections for secur ing said box firmly to the carbody. And

forward of said bolts, 20, shorter bolts, 21,

bearing box section, 13, hnd through the car body, 16, whereby said bearing box section, 13, is secured to the car body, 16, independently of the lower bearing box section, 13.- Each section of the bearing box 105 ,has an inner, upright, flat face, 17, in the same plane with such face of the other sec- 1 tion, and said faces together form an'abut- ,ment for the rear end of the hub and the rear ends of the sleeves, 10 =and'12,and the 1 anti-friction rollers, lt has already been pointed out that the fro'ntends of the axle'and said sleeves and rollersbear against the a'butments, 9, in the front' end-of the hub. To maintain this position of these parts, a key rib or lip, 18, directed toward the axle and concentric thereto, is formed on the lower section, 1 .5 in the packing groove, l lgand 1n the hub is formed a circumferen- 10 tial groove, 19, receiving said key rib or lip. The .pack1ng,-15,-is, of course, divided by Aswill be readily understood'from an'inspec'tion of the drawings, the hub is free to A turn,.the grooved portion thereof slipping on said rib or lip, but the latter prevents the hub. from slipping enrlwise. It is to be observed that the essential part of said groove is the rear face thereof; for it is necessary only that the rib or lip hold thehub from moving forward (toward the left) and 'for this it is sufficient if there is an annular shoulder such as is presented 'by the rear wall or, face of said groove. In Fig. 4 the slope of the forward portion of the groove is such as to leave practically only the one shoulder.

' It will be observed that the wheel can be removed from the axle by merely loosening the nuts on the bolts, 20, sufliciently to allow the lower box section, 13", to descend for the release of the rib or lip, 18, from the groove, 19, the upper box section being allowed to retain its position, secured bythe shorter bolts, 21, while the longer bolts, 20, remain in place therein.

The only machine workneeded by the wheel is the finishing of the hub cham er and the threading of the aperture, 7. T is calls for only easy and simple lathe work.

The bearing box and the rib or lip to-;

s ec tion having an inner face extending across the groove, 19, without entering the safme. In each of these modifications, the faces,:"17, of the bearing box and the key rib or lip, '18, cooperate for maintaining the position of the wheel; and in each of said forms, the wheel may be removed by merely loosening the bolts, 20, and lowering the lower bearing box section,13", far enough to release the rib or lip,-18, from the groove, 19.

I-claim as my invention:

1. lnas resting wholl In Fig. 8,. the.

tructure of the nature described,

an axle, a wheel having a hub surrounding said axle and having an annular circumferential shoulder, and a bearing box surrounding said axle and the adjacent end of said hub and comprising an upper section outside the. cylindrical extension of said shoulder and a lower c 1" metal section having a portion formed integral therewith and enga ing said shoul-' der,f-and means for detacha 1y securing said lower section against said upper section,

substantially as described.

2. In a structure of the nature-described,- an axle, a wheel having a hub surrounding said axle and having an oil inlet and an annular circumferential shoulder, and a bearing box surrounding-said axle and the adjacent end of said hub and comprising an upper section resting wholly outside the cylindrical extension of said shoulder and a lower cast metal section havin a'portionformed integral therewith an engaging said shoulder, and means for detachably securing said lower section against said upper section, substantially as described.

3. Ina structure-of the nature described,

amaxle, a wheel having a hub surrounding .said axle and abutting against-the end of said axle and having an annular circum f'erential shoulder, abearing box surrounding said axle and .theradjacent end ofsaid hu and comprising. an n per section resting wholly outside thecyhndrica'l extension of said shoulder and a lower cast metal section having a portion formed integral there with and engaging said shoulder, and means for detachably securing said lo'wer section against said upper section, substantlally as described. I l

'4. In a structure of the nature described, an axle, a wheel havinga hub eurroundln said axle and extending over its outer on and having an annular circumferential shoulder, a bearing boxsurroundin said 'axle andthe adjacent end of said hu and comprising an upper section resting wholly outside the cylindrical extension of said shoulder and a lower cast metal section havin g a portion formed iiitegraltherewlth and engaging said shoulder, and. means for detachably securing said lower sectlon against said upper section, substantially as described. I v

-5. In a structure of the nature-described an axle, anti-frictlon' mechanism, a wheel said anti-friction mechanism and having. an. annular circumferential shoulder, a. bearing box surrounding said axle and the adjacent endofsaid hub and comprisin an up r section resting wholly outside t e cylm r1- cal extension of said shoulder and a lower cast metal section having a portion formed integraltherewith and enga saidshoulder, and means for detachab y securing said having a hub surrounding said axle and.

lower section against said upper section,

substantially as described.

6. In a structure of the nature described,

-an axle, a wheel having a hub surrounding said axle and havinan annularvcircumferentialshoulder, a hearing bo x surrounding said axleand the adjacent end of said hub and having -an annular packing groove and comprising an upper section resting whol'ly' outside the cylindrical extension of said s oulder-and a' lower castmetal section havinga portioniormed integral therewith and engaging said, shoulder, and means for detachably securing said lower section against said upper section, substantially as described. :1 I

7. In-a structure of the nature described, an axle, a wheel having a hub surrounding said axle and havingan annularcircumfe ential shoulder, a bearing box surrounding said axle and the adjacent endof said h ub and having an annular packing groove and comprising an upper section resting wholly outside the cylindrical extension of said shoulder and, a lower cast metal sectionhaving adjacent said packing groove a portion formed integral therewith and engaging said shoulder, and means for detachably securing said lower section against said upper section, substantially as described.

8. In a structure of the nature described, an axle, a wheel having a hub surrounding said axle and having an annular circumferential shoulder, a bearing box surrounding and having a packing groove and comprising an upper section resting wholly outside the cylindrical extension of said shoulder and a lower cast metal section havingin said packing groove a portion formed integral therewith and engaging said shoulder, and means for detachably securing said lower section against saidupper section, i substantially as described. y i In testimony whereof I have signed my name, in presence of two witnesses, this 18th day of July, in the year one thousand nine hundred and ten.

CYRUS KEHR.

I :Witnesses: i 'C. A. Moase,

CARRIE R. In.

said axle and the adjacentend of said huh I 

